A statistical method to improve the energy efficiency of an office building

There is an increasing demand for energy efficient and environment-friendly buildings with a high  thermal comfort. On the other hand, the Kyoto protocol binds the developed countries to reduce the emission of greenhouse gases at least by 5% by 2008-2012. Some of the measures of the governments to achieve this goal are to improve energy efficiency of buildings and energy systems, to develop sustainable building concepts and to promote renewable energy sources. This paper presents an optimisation technique based on the design of experiments method (DOE) widely used in the industrial field for process  quality improvement. This method is used to optimize the envelope characteristics of an office building in order to improve its energy performance